Santa Rosa to Los Angeles

What the Data Says About STS to LAX

The Santa Rosa to Los Angeles corridor (STS → LAX) covers roughly 400 miles and is served by 3 carriers, based on Bureau of Transportation Statistics reporting. Across 3,457 flights in the dataset, this route posts a 83.8% on-time rate with an average delay of 64.8 minutes when flights run late. Over the most recent 24 months of BTS data, 1,362 flights were recorded on this pairing — 21 cancelled (1.5%) and 0 diverted (0.0%). Those baseline metrics tell you what to expect before you book.

Having 3 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 3,457 total flights analyzed, the 83.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 64.8-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Aug 2024 posted the best performance on this corridor at 92% on-time, while Dec 2024 came in at 68% on-time — a 23-point gap between best and worst recent month. For travelers evaluating the STS to LAX route, the combination of a 83.8% on-time rate, 64.8-minute average delay, 1.5% recent cancellation rate, and 3 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.